基本解釋[經(jīng)濟(jì)學(xué)]斜齒輪起重器詞組短語(yǔ)短語(yǔ)bevelled d gear jack 斜齒輪起重器bevelled gear jack更多詞組專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)斜齒輪起重器